28245299 has 2 divisors, whose sum is σ = 28245300. Its totient is φ = 28245298.

The previous prime is 28245293. The next prime is 28245317. The reversal of 28245299 is 99254282.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28245299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28245293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14122649 + 14122650.

It is an arithmetic number, because the mean of its divisors is an integer number (14122650).

Almost surely, 2^28245299 is an apocalyptic number.

28245299 is a deficient number, since it is larger than the sum of its proper divisors (1).

28245299 is an equidigital number, since it uses as much as digits as its factorization.

28245299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 41.

The square root of 28245299 is about 5314.6306550879. The cubic root of 28245299 is about 304.5430728639.

The spelling of 28245299 in words is "twenty-eight million, two hundred forty-five thousand, two hundred ninety-nine".